Explanation:
You could use the convex lens to create a fire by lining it up with the sun and pointing it at some type of dry plant. Same thing with the mirror. You could also use the mirror to get the attention of people who pass by or fly over.
The convex lens is used to focus sunlight at a single point and using concentrated heat you can light up a fire where as a mirror can be used to signal the passerby aircrafts.
The convex lens is a lens that converges rays of light that convey parallel to its principal axis (i.e. converges the incident rays towards the principal axis) which is relatively thick across the middle and thin at the lower and upper edges. The edges are curved outward rather than inward.
A mirror or looking glass is an object that reflects an image. Light that bounces off a mirror will show an image of whatever is in front of it. Mirrors reverse the direction of the image in an equal yet opposite angle from which the light shines upon it.
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